Infiniti EX35. Manual - part 746

EXL-28

< FUNCTION DIAGNOSIS >

[XENON TYPE]

PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM

PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM

System Diagram

INFOID:0000000003135280

System Description

INFOID:0000000003135281

OUTLINE

Parking, license plate, side marker and tail lamps are controlled by combination switch reading function and
headlamp control function of BCM, and relay control function of IPDM E/R.

PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMPS OPERATION

• BCM detects the combination switch condition by the combination switch reading function.
• BCM transmits the position light request signal to IPDM E/R with CAN communication according to the ON/

OFF condition of the parking, license plate, side marker and tail lamps.

Parking, license plate, side marker and tail lamps ON condition

- Lighting switch 1ST
- Lighting switch 2ND
- Lighting switch AUTO, and the auto light function ON judgment (with auto light system)
• IPDM E/R turns the integrated tail lamp relay ON and turns the parking lamp, the license plate, side marker

and tail lamps ON according to the position light request signal.

• Combination meter turns the tail lamp indicator lamp ON according to the position light request signal.

JPLIA1027GB

PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM

EXL-29

< FUNCTION DIAGNOSIS >

[XENON TYPE]

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Component Parts Location

INFOID:0000000003135282

Component Description

INFOID:0000000003135283

1.

Parking lamp

2.

Side marker lamp

3.

Combination switch

4.

Tail lamp and side marker lamp

5.

License plate lamp

6.

BCM

7.

IPDM E/R

8.

Tail lamp indicator lamp

A.

Dash side lower (Passenger side)

B.

Engine room dash panel (RH)

C.

On the combination meter

JPLIA0947ZZ

Part

Description

BCM

• Judges each switch condition by the combination switch reading function.
• Judges the ON/OFF status of the clearance, license plate, side marker and tail 

lamps according to the vehicle condition. Requests the tail lamp relay ON to IPDM 
E/R (with CAN communication). 

IPDM E/R

Controls the integrated relay and supplies voltage to the load according to the request 
from BCM (with CAN communication).

Combination switch
(Lighting & turn signal switch)

Refer to 

BCS-8, "System Diagram"

.

Combination meter
(Tail lamp indicator lamp)

Turns the tail lamp indicator lamp ON according to the request from BCM [with CAN 
communication (through the unified meter and A/C amp.)].

EXL-30

< FUNCTION DIAGNOSIS >

[XENON TYPE]

EXTERIOR LAMP BATTERY SAVER SYSTEM

EXTERIOR LAMP BATTERY SAVER SYSTEM

System Diagram

INFOID:0000000003135284

System Description

INFOID:0000000003135285

OUTLINE

• Exterior lamp battery saver system is controlled by each function of BCM and IPDM E/R.

Control by BCM

- Combination switch reading function
- Headlamp control function
- Exterior lamp battery saver function

Control by IPDM E/R

- Relay control function
• BCM turns the exterior lamp* OFF after a period of time to prevent the battery from over-discharge when the

ignition switch is turned OFF with the exterior lamp ON.

*: Headlamp (LO/HI), parking lamp, tail lamp, side marker lamp, license plate lamp and front fog lamp
NOTE:
When the lighting switch is turned AUTO, the exterior lamp battery saver switches to the auto light system.
Refer to 

EXL-14, "System Diagram"

.

EXTERIOR LAMP BATTERY SAVER ACTIVATION

BCM activates the timer and turns the exterior lamp OFF 5 minutes after the ignition switch is turned from ON

→

 OFF with the exterior lamps ON. 

NOTE:
• Headlamp control function turns the exterior lamps ON normally when the ignition switch is turned ACC or

the engine started (both before and after the exterior lamp battery saver is turned OFF).

• The timer starts at the time that the lighting switch is turned from OFF 

→

 1ST or 2ND with the exterior lamp

OFF.

JPLIA0007GB

EXTERIOR LAMP BATTERY SAVER SYSTEM

EXL-31

< FUNCTION DIAGNOSIS >

[XENON TYPE]

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Component Parts Location

INFOID:0000000003135286

Component Description

INFOID:0000000003135287

1.

Combination switch

2.

BCM

3.

IPDM E/R

4.

Unified meter and A/C amp.

A.

Dash side lower (Passenger side)

B.

Engine room dash panel (RH)

C.

Behind the cluster lid C

JPLIA0948ZZ

Part

Description

BCM

• Judges each switch condition by the combination switch reading function.
• Judges the exterior lamp OFF according to the vehicle condition. Requests each re-

lay OFF to IPDM E/R (with CAN communication). 

IPDM E/R

Controls the integrated relay according to the request from BCM (with CAN communi-
cation).

Combination switch
(Lighting & turn signal switch)

Refer to 

BCS-8, "System Diagram"

.